What a yakguk is, and what it stocks
A yakguk (약국) is a licensed Korean pharmacy, easily identified by a green cross sign, and distinct from a general cosmetics store like Olive Young -- pharmacies carry a mix of over-the-counter medication, medical supplies and dermatologist-recommended skincare that's a step more clinical than typical retail beauty products. For post-treatment care specifically, this is usually the better first stop than a cosmetics chain.
What to actually look for on the shelf
- Centella asiatica (called "cica" on Korean packaging) creams and ampoules, widely used for calming and barrier repair after in-clinic procedures.
- EGF (epidermal growth factor) ampoules or creams, often recommended after laser or needling treatments to support skin recovery.
- Medical-grade micropore tape, used to protect fresh incision or injection sites from friction and sun.
- Mineral or physical sunscreen (labeled "physical" or listing zinc oxide/titanium dioxide) which tends to be gentler on freshly treated skin than chemical formulas.
- Fragrance-free, low-pH cleansers meant for sensitive or compromised skin barriers.
Asking a pharmacist for help
Many pharmacists in areas with international patients have at least basic English, and translation apps close the rest of the gap easily for a straightforward request.
- Describe your treatment briefly ("laser," "injection," "peel") rather than assuming the pharmacist needs full medical detail.
- Ask specifically whether a product is appropriate for freshly treated skin, not just generally popular.
- If your clinic gave written aftercare instructions, show them directly -- this is often the fastest way to get matched with the right product.
It's worth building a short pharmacy stop into your itinerary specifically, rather than treating it as an errand to squeeze in -- many yakguk near clinic-dense neighborhoods like Gangnam and Apgujeong are used to walk-in aftercare requests and can often recommend a full small routine, not just a single product, once they understand what you had done.
Official sources
Time-sensitive details were checked against the original sources below on 2026-08-28.